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Table 2 Results of a univariate analysis to identify predictors for each complication

From: Drain output volume after pancreaticoduodenectomy is a useful warning sign for postoperative complications

 

Positive

Negative

p-value

a. Overall morbidity

 

209 (51.7%)

195 (48.3%)

 

DOV on POD1 (ml)

280 (15–1490)

258 (50–1475)

0.556

DA on POD1 (U/l)

1433 (0–95,100)

429 (9–15,280)

 < 0.0001

WBC counts on POD1 (/μl)

10,640 (820–113,800)

10,330 (635–28,350)

0.383

CRP on POD1 (mg/dl)

10.330 (0.79–25.84)

8.970 (0.09–17.50)

 < 0.001

DOV on POD3 (ml)

256 (0–1061)

210 (0–1573)

0.085

DA on POD3 (U/l)

163 (3–17,200)

67 (6–11,863)

 < 0.0001

WBC counts on POD3 (/μl)

9060 (730–23,710)

8325 (2260–26,230)

0.012

CRP on POD3 (mg/dl)

14.330 (0.87–42.32)

10.470 (0.98–37.57)

 < 0.0001

b. Major complications

 

100 (24.8%)

304 (75.2%)

 

DOV on POD1 (ml)

274.5 (15–1490)

235 (50–1350)

0.165

DA on POD1 (U/l)

1836 (0–95,100)

458 (6–54,600)

 < 0.0001

WBC counts on POD1 (/μl)

10,380 (1140–113,800)

10,400 (635–28,350)

0.909

CRP on POD1 (mg/dl)

10.680 (1.42–25.84)

9.130 (0.09–18.40)

 < 0.001

DOV on POD3 (ml)

174 (0–1210)

250 (0–1573)

0.008

DA on POD3 (U/l)

213.5 (3–14,272)

72 (5–17,200)

 < 0.0001

WBC counts on POD3 (/μl)

10,275 (1460–21,570)

8300 (730–26,230)

 < 0.001

CRP on POD3 (mg/dl)

18.890 (3.76–42.32)

10.810 (0.87–37.57)

 < 0.0001

c. IAI

 

135 (33.4%)

269 (66.7%)

 

DOV on POD1 (ml)

240 (50–1475)

286 (15–1490)

0.009

DA on POD1 (U/l)

1836 (0–95,100)

338 (6–54,600)

 < 0.0001

WBC counts on POD1 (/μl)

10,840 (1140–113,800)

10,050 (635–28,350)

0.059

CRP on POD1 (mg/dl)

10.440 (0.79–25.84)

9.000 (0.09–17.50)

 < 0.001

DOV on POD3 (ml)

328 (0–1210)

410 (0–1573)

 < 0.001

DA on POD3 (U/l)

224 (3–17,200)

67 (5–11,863)

 < 0.0001

WBC counts on POD3 (/μl)

10,180 (730–23,710)

8275 (2260–26,230)

 < 0.0001

CRP on POD3 (mg/dl)

16.350 (3.65–42.32)

10.430 (0.87–37.57)

 < 0.0001

d. CR-POPF

 

75 (18.6%)

329 (81.4%)

 

DOV on POD1 (ml)

178 (50–730)

290 (15–1490)

 < 0.0001

DA on POD1 (U/l)

4374 (4–95,100)

458.5 (0–54,600)

 < 0.0001

WBC counts on POD1 (/μl)

10,640 (1140–113,800)

10,330 (635–28,350)

0.383

CRP on POD1 (mg/dl)

10.490 (1.26–19.62)

9.280 (0.09–25.84)

0.007

DOV on POD3 (ml)

178 (0–1573)

250 (0–1061)

0.029

DA on POD3 (U/l)

453.5 (3–17,200)

72 (5–11,863)

 < 0.0001

WBC counts on POD3 (/μl)

10,420 (1460–21,570)

8510 (730–26,230)

0.005

CRP on POD3 (mg/dl)

18.625 (2.57–42.32)

11.260 (0.87–37.57)

 < 0.0001

e. CR-DGE

 

23 (5.7%)

381 (94.3%)

 

DOV on POD1 (ml)

266 (15–1490)

266 (82–1300)

0.546

DA on POD1 (U/l)

213 (6–16,420)

735 (0–95,100)

0.092

WBC counts on POD1 (/μl)

10,400 (635–113,800)

9390 (5300–17,460)

0.28

CRP on POD1 (mg/dl)

9.245 (5.01–15.58)

9.495 (0.09–25.84)

0.7

DOV on POD3 (ml)

236 (0–1573)

212 (35–830)

0.693

DA on POD3 (U/l)

46 (9–1289)

104 (3–17,200)

0.237

WBC counts on POD3 (/μl)

7710 (2630–13,220)

8740 (730–26,230)

0.161

CRP on POD3 (mg/dl)

11.370 (3.37–29.36)

12.365 (0.87–42.32)

0.639

f. CR-CL

 

20 (5.0%)

384 (95.0%)

 

DOV on POD1 (ml)

485 (144–1332)

250 (15–1490)

 < 0.0001

DA on POD1 (U/l)

978 (4–15,944)

705.5 (0–95,100)

0.928

WBC counts on POD1 (/μl)

9620 (820–17,090)

10,400 (635–113,800)

0.464

CRP on POD1 (mg/dl)

9.595 (3.53–15.37)

9.495 (0.09–25.84)

0.945

DOV on POD3 (ml)

459.5 (130–1573)

229.5 (0–1210)

 < 0.0001

DA on POD3 (U/l)

119 (3–2811)

100 (5–17,200)

0.787

WBC counts on POD3 (/μl)

8475 (3150–17,030)

8640 (730–26,230)

0.526

CRP on POD3 (mg/dl)

7.730 (1.10–21.45)

12.445 (0.87–42.32)

0.004

g. CR-PPH

 

28 (6.9%)

376 (93.1%)

 

DOV on POD1 (ml)

187 (60–867)

275.5 (15–1490)

0.027

DA on POD1 (U/l)

2313 (63–38,492)

639 (0–95,100)

 < 0.0001

WBC counts on POD1 (/μl)

10,590 (1140–19,190)

10,380 (635–113,800)

0.919

CRP on POD1 (mg/dl)

10.705 (6.54–16.02)

9.465 (0.09–25.84)

0.189

DOV on POD3 (ml)

195 (30–980)

240 (0–1573)

0.165

DA on POD3 (U/l)

217.5 (43–13,230)

91.5 (3–17,200)

 < 0.0001

WBC counts on POD3 (/μl)

11,175 (1460–21,570)

8560 (730–26,230)

0.033

CRP on POD3 (mg/dl)

21.090 (4.57–42.32)

11.370 (0.87–37.57)

 < 0.0001

  1. DOV drain output volume, DA drain amylase, WBC white blood cell, CRP c-reactive protein, POD postoperative day, IAI intraabdominal infection, CR clinically relevant, POPF postoperative pancreatic fistula, DGE delayed gastric emptying, CL chyle leak, PPH post-pancreatectomy hemorrhage